Manual Clock Circuit Controls: Speed and Single-Step
We add a (logarithmic) potentiometer and a single-step mode switch and button to our clock circuit.
This design was inspired by Julian Ilett's clock circuit • 555 Timer Clock Circuit for 8-bit Computer...
Compare with Ben Eater's Clock circuit • Bistable 555 - 8-bit computer clock - part 3 where he goes in depth into the different modes of a 555 timer.
Schematic available: https://excess.org/clock-controls/
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